﻿namespace Silvester
{
    using System;
    using System.Windows;

    public partial class App : Application
    {
        private const string TwitterUserKey = "twitterUser";
        public App()
        {
            this.Startup += this.Application_Startup;
            this.Exit += this.Application_Exit;
            this.UnhandledException += this.Application_UnhandledException;

            InitializeComponent();
        }

        private void Application_Startup( object sender, StartupEventArgs e )
        {
            string twitterUser = string.Empty;

            if ( e.InitParams.ContainsKey( TwitterUserKey ) )
            {
                twitterUser = e.InitParams[ TwitterUserKey ];
            }

            this.RootVisual = new TwitterClient()
            {
                TwitterUser = twitterUser
            };
        }

        private void Application_Exit( object sender, EventArgs e )
        {
        }

        private void Application_UnhandledException( object sender, ApplicationUnhandledExceptionEventArgs e )
        {
            // If the app is running outside of the debugger then report the exception using
            // the browser's exception mechanism. On IE this will display it a yellow alert 
            // icon in the status bar and Firefox will display a script error.
            if ( !System.Diagnostics.Debugger.IsAttached )
            {
                // NOTE: This will allow the application to continue running after an exception has been thrown
                // but not handled. 
                // For production applications this error handling should be replaced with something that will 
                // report the error to the website and stop the application.
                e.Handled = true;

                try
                {
                    string errorMsg = e.ExceptionObject.Message + e.ExceptionObject.StackTrace;
                    errorMsg = errorMsg.Replace( '"', '\'' ).Replace( "\r\n", @"\n" );

                    System.Windows.Browser.HtmlPage.Window.Eval( "throw new Error(\"Unhandled Error in Silverlight 2 Application " + errorMsg + "\");" );
                }
                catch ( Exception )
                {
                }
            }
        }
    }
}
